SCHEDULE 13G  
  
Amendment No. 4  
Eidos plc  
American Depositary Receipts  
Cusip # 282485101  
 
 
Cusip # 282485101  
Item 1:	Reporting Person - FMR Corp.  
Item 4:	Commonwealth of Massachusetts  
Item 5:	None  
Item 6:	None  
Item 7:	262,500  
Item 8:	None  
Item 9:	262,500  
Item 11:	16.28%  
Item 12:	HC   
  
  
 
 
Cusip # 282485101  
Item 1:	Reporting Person - Edward C. Johnson 3d   
Item 4:	United States of America  
Item 5:	None  
Item 6:	None  
Item 7:	262,500  
Item 8:	None  
Item 9:	262,500  
Item 11:	16.28%  
Item 12:	IN   
  
 
 
Cusip # 282485101  
Item 1:	Reporting Person - Abigail P. Johnson   
Item 4:	United States of America  
Item 5:	None  
Item 6:	None  
Item 7:	262,500  
Item 8:	None  
Item 9:	262,500  
Item 11:	16.28%  
Item 12:	IN   
  
 
 
SCHEDULE 13G - TO BE INCLUDED IN STATEMENTS  
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)  
  
  
Item 1(a).	Name of Issuer:  
  
		Eidos plc  
  
Item 1(b).	Name of Issuer's Principal Executive Offices:  
  
		Wimbledon Bridge House, 1 Hartfield Road  
		Wimbledon, London  SW19 3RU  
		United Kingdom  
  
Item 2(a).	Name of Person Filing:   
  
		FMR Corp.  
  
Item 2(b).	Address or Principal Business Office or, if None, Residence:  
  
		82 Devonshire Street, Boston, Massachusetts  02109  
  
Item 2(c).	Citizenship:  
  
		Not applicable  
  
Item 2(d).	Title of Class of Securities:  
  
		American Depositary Receipts  
  
Item 2(e).	CUSIP Number:    
  
		282485101  
  
Item 3.	This statement is filed pursuant to Rule 13d-1(b) or 13d-2(b) and the  
person filing, FMR Corp., is a parent holding company in accordance  
with Section 240.13d-1(b)(ii)(G).  (Note:  See Item 7).  
  
Item 4.	Ownership  
  
	(a)	Amount Beneficially Owned: 
	262,500  
  
	(b)	Percent of Class: 
	16.28%  
  
	(c)	Number of shares as to which such person has:    
  
	(i)	sole power to vote or to direct the vote: 
	None  
  
	(ii)	shared power to vote or to direct the vote: 
	None  
  
	(iii)	sole power to dispose or to direct the disposition of: 
	262,500  
  
	(iv)	shared power to dispose or to direct the disposition of: 
	None  
  
  
 
 
Item 5.	Ownership of Five Percent or Less of a Class.  
  
	Not applicable.  
  
Item 6.	Ownership of More than Five Percent on Behalf of Another Person.  
  
	Various persons have the right to receive or the power to  
direct the receipt of dividends from, or the proceeds from the  
sale of, the American Depositary Receipts of Eidos plc.  The  
interest of one person, Fidelity Select Software and Computer  
Services Portfolio, an investment company registered under the  
Investment Company Act of 1940, in the American Depositary  
Receipts of Eidos plc, amounted to 146,000 American Depositary  
Receipts or 9.06% of the total outstanding American Depositary  
Receipts at December 31, 1997.  The interest of one person,  
Fidelity Advisor Strategic Opportunities Fund, an investment  
company registered under the Investment Company Act of 1940, in  
the American Depositary Receipts of Eidos plc, amounted to  
116,500 American Depositary Receipts or 7.23% of the total  
outstanding American Depositary Receipts at December 31, 1997.    
  
Item 7.	Identification and Classification of the Subsidiary Which Acquired  
the Security Being Reported on By the Parent Holding Company.  
  
	See attached Exhibit(s) A and B.  
  
Item 8.	Identification and Classification of Members of the Group.  
  
	Not applicable, see attached Exhibit A.   
  
Item 9.	Notice of Dissolution of Group.  
  
	Not applicable.  
 
 
  
Item 10.	Certification.  
  
	By signing below I certify that, to the best of my knowledge  
and belief, the securities referred to above were acquired in  
the ordinary course of business and were not acquired for the  
purpose of and do not have the effect of changing or  
influencing the control of the issuer of such securities and  
were not acquired in connection with or as a participant in any  
transaction having such purpose or effect.  
  
  
Signature  
  
	After reasonable inquiry and to the best of my knowledge and  
belief, I certify that the information set forth in this  
Schedule 13G in connection with FMR Corp.'s beneficial  
ownership of the American Depositary Receipts of Eidos plc at  
December 31, 1997 is true, complete and correct.   
  
  
  
	January 10, 1998	  
Date  
  
  
  
	/s/Eric D. Roiter  
Signature  
  
  
  
	Eric D. Roiter  
Duly authorized under Power of  
Attorney  
dated December 30, 1997, by and  
on behalf  
of FMR Corp. and its direct and  
indirect subsidiaries  
  
 
 
SCHEDULE 13G - TO BE INCLUDED IN STATEMENTS  
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)  
  
	Pursuant to the instructions in Item 7 of Schedule 13G, Fidelity  
Management & Research Company ("Fidelity"), 82 Devonshire Street, Boston,  
Massachusetts 02109, a wholly-owned subsidiary of FMR Corp. and an investment  
adviser registered under Section 203 of the Investment Advisers Act of 1940,  
is the beneficial owner of 262,500 American Depositary Receipts or 16.28% of  
the American Depositary Receipts outstanding of Eidos plc ("the Company") as a  
result of acting as investment adviser to various investment companies  
registered under Section 8 of the Investment Company Act of 1940.    
  
	The ownership of one investment company, Fidelity Select Software and  
Computer Services Portfolio, amounted to 146,000 American Depositary Receipts  
or 9.06% of the American Depositary Receipts outstanding.  Fidelity Select  
Software and Computer Services Portfolio has its principal business office at  
82 Devonshire Street, Boston, Massachusetts 02109.    
  
	The ownership of one investment company, Fidelity Advisor Strategic  
Opportunities Fund, amounted to 116,500 American Depositary Receipts or 7.23%  
of the American Depositary Receipts outstanding.  Fidelity Advisor Strategic  
Opportunities Fund has its principal business office at 82 Devonshire Street,  
Boston, Massachusetts 02109.    
  
	Edward C. Johnson 3d, FMR Corp., through its control of Fidelity, and the  
funds each has sole power to dispose of the 262,500 American Depositary  
Receipts owned by the Funds.  
  
	Neither FMR Corp. nor Edward C. Johnson 3d, Chairman of FMR Corp., has  
the sole power to vote or direct the voting of the American Depositary  
Receipts owned directly by the Fidelity Funds, which power resides with the  
Funds' Boards of Trustees.  Fidelity carries out the voting of the American  
Depositary Receipts under written guidelines established by the Funds' Boards  
of Trustees.  
  
	Members of the Edward C. Johnson 3d family and trusts for their benefit  
are the predominant owners of Class B shares of common stock of FMR Corp.,  
representing approximately 49% of the voting power of FMR Corp.  Mr. Johnson  
3d owns 12.0% and Abigail Johnson owns 24.5% of the aggregate outstanding  
voting stock of FMR Corp.  Mr. Johnson 3d is Chairman of FMR Corp. and Abigail  
P. Johnson is a Director of FMR Corp.  The Johnson family group and all other  
Class B shareholders have entered into a shareholders' voting agreement under  
which all Class B shares will be voted in accordance with the majority vote of  
Class B shares.  Accordingly, through their ownership of voting common stock  
and the execution of the shareholders' voting agreement, members of the  
Johnson family may be deemed, under the Investment Company Act of 1940, to  
form a controlling group with respect to FMR Corp.    
 
 
SCHEDULE 13G - TO BE INCLUDED IN STATEMENTS  
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)  
RULE 13d-1(f)(1)  AGREEMENT  
  
	The undersigned persons, on January 10, 1998, agree and consent to the  
joint filing on their behalf of this Schedule 13G in connection with their  
beneficial ownership of the American Depositary Receipts of Eidos plc at  
December 31, 1997.  
	FMR Corp.  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
Duly authorized under Power of  
Attorney dated December 30,  
1997 by and on behalf of FMR  
Corp. and its direct and  
indirect subsidiaries  
	Edward C. Johnson 3d  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
Duly authorized under Power of  
Attorney dated December 30,  
1997, by and on behalf of  
Edward C. Johnson 3d  
	Abigail P. Johnson  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
Duly authorized under Power of  
Attorney dated December 30,  
1997, by and on behalf of  
Abigail P. Johnson  
	Fidelity Management & Research Company  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
V.P. and General Counsel  
	Fidelity Select Software and Computer  
Services Portfolio  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
Secretary  
	Fidelity Advisor Strategic Opportunities  
Fund  
	By	/s/Eric D. Roiter  
Eric D. Roiter 
Secretary